Sampling Station (IMAGE) Penn State Caption A water monitoring station at a study site on the Susquehanna River consisting of automated dissolved oxygen, temperature, pH and water-level sensors. Credit Faith Kibuye/Penn State Usage Restrictions non commercial use only License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.